Lightroom: Keyboard shortcut for Open As Layers in Photoshop

I love this feature but want it to have a keyboard shortcut. I know you can right click the selected images and select Edit in then Open As Layers in Photoshop but a shortcut would improve my workflow!

On Mac: Assign a keyboard shortcut to "Open as Layers in Photoshop..." using the standard OS X shortcuts. Go to System Preferences > Keyboard > Shortcuts > App Shortcuts and click the "+" button ( (be sure to type the menu command's name exactly).

On Windows: Use the standard Windows accelerators: Alt-P E O O Enter. You could shorten that to three keystrokes, Alt-P E L, by creating the file TranslatedStrings.txt in the folder "c:\program files\adobe\adobe photoshop lightroom 5.7\resources\en" containing the following line:

"$$$/AgEditExternally/MenuCommand/ContextMenu/openAsLayers=Open as &Layers in Photoshop..."

(If you're running LR in another language, find the appropriate \TranslatedStrings.txt and change the corresponding line accordingly, using the "&" to highlight the desired shortcut letter.)

You could shorten that to a single keystroke, e.g. Shift-F2, by using the free AutoHotkey.

While not as convenient as having a shortcut builtin to LR (much less having a general facility for defining your own shortcuts), these methods get the job done.

Hi John - I'm close, but no cigar yet. Have added that line into the TranslatedString.txt file (should there be an ellipses ... after Photoshop in the command line?) and saved. Opened LR 5.7, selected 3 files, held down alt while typing P then E which opens the Photo>Edit in, menu panes, but L remains unassigned. There is no L next to 'Open as layers in Photoshop'
Have I gone wrong somewhere?